NO121107B - - Google Patents
Download PDFInfo
- Publication number
- NO121107B NO121107B NO164227A NO16422766A NO121107B NO 121107 B NO121107 B NO 121107B NO 164227 A NO164227 A NO 164227A NO 16422766 A NO16422766 A NO 16422766A NO 121107 B NO121107 B NO 121107B
- Authority
- NO
- Norway
- Prior art keywords
- electrode
- holder
- contact
- slopes
- strips
- Prior art date
Links
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Image Signal Generators (AREA)
- Closed-Circuit Television Systems (AREA)
- Furnace Details (AREA)
- Discharge Heating (AREA)
Description
Elektrodeholder for elektriske smelteovner. Electrode holder for electric melting furnaces.
Foreliggende oppfinnelse angår elek-trodeholdere for elektriske smelteovner som The present invention relates to electrode holders for electric melting furnaces which
er utstyrt med kontinuerlige elektroder. Disse elektroder brennes som kjent etter-hvert i den ovnen hvor de anvendes, og hver elektrode vil derfor bestå av en nedre ferdigbrent del og en øvre ubrent del hvor den rå elektrodemasse er mer eller mindre fly-tende. Grensen mellom disse partier, brennesonen, er forholdsvis skarp og kan lett fastlegges ved at man stikker en tynn stål-stang gjennom den varme, rå masse til den støter mot den harde ferdigbrente del. is equipped with continuous electrodes. As is known, these electrodes are fired in the furnace where they are used, and each electrode will therefore consist of a lower, fully fired part and an upper, unfired part where the raw electrode mass is more or less fluid. The border between these parts, the burning zone, is relatively sharp and can be easily determined by sticking a thin steel rod through the hot, raw mass until it hits the hard, finished part.
Strømtilførselen til slike elektroder foregår vanligvis ved hjelp av et antall The power supply to such electrodes usually takes place by means of a number
vannkjølte kontaktbakker som presses mot elektroden, f. eks. ved hjelp av en utven-dig trykkring hvis trykk mot bakkene regu-leres på kjent vis. water-cooled contact pads that are pressed against the electrode, e.g. by means of an external pressure ring whose pressure against the slopes is regulated in a known manner.
I alminnelighet vil brennesonen ligge innenfor den vannkjølte elektrodeholder In general, the burning zone will lie within the water-cooled electrode holder
slik at elektroden er ferdigbrent i elektrode-holderens underkant, men er rå og ubrent i den øvre del. Derved vil elektroden forme seg etter elektrodeholderen i dennes øvre del, og man får god elektrisk kontakt mellom bakker og elektrodemantel. so that the electrode is fully burned in the lower edge of the electrode holder, but is raw and unburned in the upper part. Thereby, the electrode will shape itself according to the electrode holder in its upper part, and you get good electrical contact between the trays and the electrode jacket.
I lukkede ovner vil brennesonen i man-ge tilfelle ligge i underkant av bakkene, og man risikerer da at elektroden brekker like under holderen, da den her mangler den nødvendige styrke til å kunne motstå de påkjenninger som oppstår. Det er derfor ønskelig å kunne heve brennesonen opp i holderen slik at elektroden får en større motstandsdyktighet mot strekk- og bøye-påkjenninger, og også tåler større ampére-belastning. In closed furnaces, the burning zone will in many cases lie below the slopes, and there is a risk that the electrode will break just below the holder, as it lacks the necessary strength to withstand the stresses that arise. It is therefore desirable to be able to raise the burning zone up in the holder so that the electrode has a greater resistance to tensile and bending stresses, and can also withstand a greater amperage load.
Dette kan oppnås ved å redusere kjøle-virkningen i holderen hvorved brennesonen vil krype oppover. Samtidig vil kjølevanns-tapene reduseres. Da de enkelte bakker er sterkt utsatt for påkjenningen av varme-utviklingen i ovnen, er det ikke tilrådelig å redusere kjølevirkningen ved å redusere mengden av kjølevann. Man må tvertimot gå den vei å redusere kontaktflaten mellom elektroden og holderen. Herved opprett-holdes fullstendig kjøling av de enkelte hol-derdeler samtidig som kjølevannstapene reduseres, og brennesonen heves. This can be achieved by reducing the cooling effect in the holder whereby the combustion zone will creep upwards. At the same time, cooling water losses will be reduced. As the individual trays are highly exposed to the stress of heat generation in the oven, it is not advisable to reduce the cooling effect by reducing the amount of cooling water. On the contrary, one must go in the direction of reducing the contact surface between the electrode and the holder. In this way, complete cooling of the individual holder parts is maintained while the cooling water losses are reduced, and the combustion zone is raised.
Ifølge oppfinnelsen kan bakkene utfø-res slik at deres indre flate som ligger an mot elektroden, utgjøres av vertikale strimler av godt ledende materiale, f. eks. kobber. Avstanden mellom strimlene må da avpas-ses etter elektrodeforbruket, strømbelast-ningen og de øvre forhold i ovnen således at kjølevirkningen fra konatktflåtene tillater at brennesonen heves godt opp i holderen. Den må imidlertid ikke komme for høyt slik at elektroden mister sin plastisitet og form-barhet i holderens øvre del. Som nevnt tid-ligere, er det nødvendig at elektroden lar seg deformere etter bakkenes form i holderens øvre del hvis man vil ha tilstrekke-lig god elektrisk kontakt mellom bakkene og elektrodemantelen. Mellomrommene mellom strimlene kan eventuelt fylles med et keramisk materiale. According to the invention, the slopes can be designed so that their inner surface, which abuts the electrode, is made up of vertical strips of well-conducting material, e.g. copper. The distance between the strips must then be adjusted according to the electrode consumption, the current load and the upper conditions in the furnace so that the cooling effect from the contact floats allows the burning zone to rise well up in the holder. However, it must not be too high so that the electrode loses its plasticity and formability in the upper part of the holder. As mentioned earlier, it is necessary for the electrode to allow itself to be deformed according to the shape of the slopes in the upper part of the holder if you want to have sufficiently good electrical contact between the slopes and the electrode sheath. The spaces between the strips can optionally be filled with a ceramic material.
For å unngå at brennesonen løftes for høyt opp i holderen, kan man utføre bakkene slik at deres øvre del har mindre kon-taktflate mot elektroden enn deres nedre del. To avoid the burning zone being lifted too high up in the holder, the slopes can be made so that their upper part has a smaller contact surface against the electrode than their lower part.
Et eksempel på oppfinnelsen er illu-strert på vedlagte fig. I, som viser en bakke An example of the invention is illustrated in the attached fig. I, showing a hill
i perspektiv. in perspective.
På figuren er 1 en elektrodebakke. 2 er In the figure, 1 is an electrode tray. 2 is
kontaktstrimler som ligger an mot elektroden og som utgjøres av et godt ledende contact strips that lie against the electrode and are made up of a good conductor
materiale. 3 er mellomrommene mellom material. 3 are the spaces between
strimlene som kan være fylt med et keramisk materiale. Eventuelt kan også kon-taktstrimlene være utvidet nederst slik at the strips which may be filled with a ceramic material. Optionally, the contact strips can also be extended at the bottom so that
bakkene her får sammenhengende kontakt-flate mot elektroden. 4 og 5 betegner til-førsels- og avløpsrørene for kjølevannet til the slopes here get a continuous contact surface against the electrode. 4 and 5 denote the supply and drain pipes for the cooling water
bakkene. the slopes.
Strimlene behøver ikke nødvendigvis The strips are not necessarily needed
være utstøpt sammen med beholderen. De be cast together with the container. The
kan også sveises til holderen, eller de kan can also be welded to the holder, or they can
være sveiset til eller på annen måte for-bundet med selve mantelen. be welded to or otherwise connected to the mantle itself.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33992/65A GB1081527A (en) | 1965-08-09 | 1965-08-09 | Improvements in or relating to colour television systems |
Publications (1)
Publication Number | Publication Date |
---|---|
NO121107B true NO121107B (en) | 1971-01-18 |
Family
ID=10360003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO164227A NO121107B (en) | 1965-08-09 | 1966-08-08 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3449509A (en) |
CH (1) | CH444225A (en) |
DE (1) | DE1462784A1 (en) |
FR (1) | FR1500944A (en) |
GB (1) | GB1081527A (en) |
NL (1) | NL6609067A (en) |
NO (1) | NO121107B (en) |
SE (1) | SE345572B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1422341A (en) * | 1972-04-27 | 1976-01-28 | ||
US3986202A (en) * | 1975-03-05 | 1976-10-12 | Eastman Kodak Company | Processing apparatus and method for color video signals |
US4667226A (en) * | 1982-09-14 | 1987-05-19 | New York Institute Of Technology | High definition television camera system and method with optical switching |
US4652909A (en) * | 1982-09-14 | 1987-03-24 | New York Institute Of Technology | Television camera and recording system for high definition television having imagers of different frame rate |
WO2014008348A2 (en) | 2012-07-05 | 2014-01-09 | Kci Licensing, Inc. | Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation |
US10898217B2 (en) | 2014-05-09 | 2021-01-26 | Kci Licensing, Inc. | Dressing providing apertures with multiple orifice sizes for negative-pressure therapy |
USD903093S1 (en) | 2019-03-08 | 2020-11-24 | Kci Licensing, Inc. | Negative-pressure therapy device module |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1043231A (en) * | 1962-05-30 | 1966-09-21 | Communications Patents Ltd | Improved wired broadcasting systems and apparatus therefor |
GB1073375A (en) * | 1963-02-20 | 1967-06-28 | Communications Patents Ltd | Improvements in colour television systems |
-
1965
- 1965-08-09 GB GB33992/65A patent/GB1081527A/en not_active Expired
-
1966
- 1966-04-29 US US546248A patent/US3449509A/en not_active Expired - Lifetime
- 1966-05-04 SE SE6127/66A patent/SE345572B/xx unknown
- 1966-05-20 CH CH730766A patent/CH444225A/en unknown
- 1966-06-29 NL NL6609067A patent/NL6609067A/xx unknown
- 1966-08-08 NO NO164227A patent/NO121107B/no unknown
- 1966-08-09 FR FR72581A patent/FR1500944A/en not_active Expired
- 1966-08-09 DE DE19661462784 patent/DE1462784A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR1500944A (en) | 1967-11-10 |
SE345572B (en) | 1972-05-29 |
DE1462784A1 (en) | 1968-12-05 |
NL6609067A (en) | 1967-02-10 |
GB1081527A (en) | 1967-08-31 |
CH444225A (en) | 1967-09-30 |
US3449509A (en) | 1969-06-10 |
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